Phase Spider

Magical Beast · SM +1 Phase Spider (Enraged Eggplant; answers SRD 3.5, SRD 5.1)

A large spider that spends most of its time slightly outside the world. It steps in beside its prey, bites, and steps back out before a weapon can answer — the venom does the work while the spider waits somewhere nothing can reach it.

Attributes

ST16

DX12

IQ7

HT11

HP16

Will10

Per12

FP11

Basic Speed5.75

Basic Move7

Dodge8

DR1

Melee attacks

Usage	Level	Damage	Reach
FangsFangs (14): thrust 1d+1 impaling plus follow-up 1d-1 toxic (5 1-minute cycles, resisted by HT-3, -2 HT after loss of 1/3 HP), Reach C.	14	thrust 1d+1 impaling plus follow-up 1d-1 toxic (5 1-minute cycles, resisted by HT-3, -2 HT after loss of 1/3 HP)	C
Ethereal JauntEthereal Jaunt (12): The phase spider can slip into the Ethereal Plane from the Material Plane and the other way around as per Jumper (p. B64). The jaunt requires a single Concentrate maneuver. After using this ability, he cannot reactivate it for 5 seconds.	12	The phase spider can slip into the Ethereal Plane from the Material Plane and the other way around as per Jumper (p. B64). The jaunt requires a single Concentrate maneuver. After using this ability, he cannot reactivate it for 5 seconds	—

Traits (13)

• Bestial
• Clinging
• Cold-Blooded (50°)
• Extra Legs (Eight Legs)
• Infravision
• Injury Tolerance (No Head, No Neck)
• Mute
• Night Vision 9
• No Fine Manipulators
• Peripheral Vision
• Restricted Diet (Carnivore)
• Semi-Upright
• Subsonic Hearing (Biological (Passive); Melee Attack, Reach C)

Skills (2)

• 14Brawling
• 14Stealth

Notes

• GCS ancestry draft: gcs/phase-spider.gct
• Source template total: 232 points.
• Library-rebuilt template total: 232 points.
• CER was computed from parsed Typical Stats using the Dungeons On Automatic baseline CER path.
• Review attacks, special abilities, encounter frequency, treasure, grappling, and GCS modifiers before approval.
• Poison (follow-up on Sharp Teeth): Toxic Attack 1d-1 (Cyclic, 1 minute, 4 cycles, Resistible, +80%; Follow-Up, Sharp Teeth, +0%; Resistible, HT-3, -15%; Symptoms, 1/3 HP, -2 HT, +30%) Resolve as stated by the construction; the source gives no separate resolution text.

Encounter rating

CER23

Offense15

Protection8

Threat tierminor

Appearing6

Wandering4

Tags

• srd-3-5
• srd-5-1
• magical-beast

GCS v5 downloads

• ↓ Character sheet (.gcs)Open directly in GCS
• ↓ Ancestry template (.gct)Apply to any character

Where this one came from

Source record

Phase Spider

Source system

gurps_4e_fan_conversion / author_permission

Released under

cc_by_4_0

Conversion

0.2.0-reviewed

Review status

approved

Credit

Original GURPS conversion by Enraged Eggplant, from Monsters (May 11, 2024); adapted and republished with permission.

Description

Written by Dungeons on Automatic, released under cc_by_4_0

• GCS ancestry draft: gcs/phase-spider.gct
• Source template total: 232 points.
• Library-rebuilt template total: 232 points.
• CER was computed from parsed Typical Stats using the Dungeons On Automatic baseline CER path.
• Issue #5: 2 special ability construction(s) restored (Poison). No disabling construction on this record carries a cost the affliction term can score.
• CER recomputed from the reviewed Typical Stats through the canonical Dungeons on Automatic CER path: OR 15, PR 8, CER 23, threat tier minor.
• Conversion baseline reported OR 16, PR 8, CER 24 (tier minor). The reviewed values come from the consumer CER implementation, which rounds damage once after the damage-type multiplier and credits ranged accuracy; the conversion baseline ceilinged the damage base first and ignored range.
• Encounter metadata derived (gregarious): average number appearing 6, wandering weight 4. Encounter metadata derived for 0.2.0 from the reviewed threat tier and creature class (appearing: minor 4 / standard 2 / major 1 / severe 1, forced to 1 for solitary classes — including swarms, which are a single multi-body creature — and raised to 6 for gregarious minor creatures; wandering weight: minor 4 / standard 3 / major 2 / severe 1). The fan-conversion source states no appearing-in-numbers or wandering values, so these are derived, not source mechanics.
• Lair, treasure, and grappling remain unpopulated in 0.2.0 by package policy: the authorized fan-conversion source states no lair, treasure, or grappling values, and review declines to invent them. See review/policy/0.2.0-empty-field-policy.md.
• Description text is original Dungeons on Automatic prose written from this record's own converted statistics and from the project's art direction for the creature. It is not derived from the authorized fan-conversion source, which states no creature descriptions, and not from any SRD. It carries its own authorship and CC BY 4.0 terms in the description field. See review/policy/description-policy.md.
• Review approved by automated-mechanical-review on 2026-07-26 (batch ee-2026-07-26-b4-special-mechanics); GCS fidelity check passed, DOA playability check passed.
• Special-mechanics record. Mechanics the CER path cannot price are named per record in review/reports/cer-audit.md rather than folded into the number, and encounter counts are capped where a save-or-disable attack is present.